and an array of radar and missile defense capabilities plus a fleet of f-22 fighter jets based in nearby qatar. hagel highlighted those assets while trying to reassure nervous regional ailing lie sllies that the u.s. is here to stay. >> this is not an exercise based on any folly. be assured that the united states of america will not change any of its force posture or any of its force protection. or any of its relationships with our partners here in the gulf. >> reporter: yet many of those allies question whether the obama administration is willing to even use all the military hardware that it has parked in iran's backyard. for "cbs this morning saturday" margaret brennan, ba han. >>> contaminated tap water at a marine base is linked to birth defects and childhood cancers. the centers for disease control studied children born at camp lejeune between 1968 and 1985. that study found that babies were four high times higher to have birth defects. wells at the base were closed in 1985. >>> the latest check of the healthcare.gov website shows 3.7 million people visited the site this past week.